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Klim Radium GTX Boots
  • Klim Radium GTX Boots

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Klim Radium GTX Boots Videos

Klim Radium Gore-Tex Boots

For those aggressive riders who need the ultimate in weather protection and unsurpassed functionality, the Klim Radium GTX Boot with removable liner offers this and more. Constructed with Gore-Tex product technology, the rider’s feet stay dry and allows sweat from the inside to escape. The Radium has been specifically engineered to take the abuse the tunnel and running boards dish out by adding additional protective material to the boot. The Radium Boot offers more rigid support than its brother, the Adrenaline Boot, but does not compromise when it comes to freedom of movement. The Klim Radium sole is specifically designed from lug pattern to the durometer of rubber to ensure total traction on the running boards whether they are full of snow or not.


  • Gore-Tex insulated comfort footwear technology
  • Two-part liner/shell design offers maximum stiffness
  • Rider specific forward flex with rigid side-to-side support
  • Exclusive dual durometer outsole provides superior traction on running boards and the snow
  • Encapsulated EVA foam mid-sole and stiff board disperses shock and protects feet
  • Kicker toe piece resists wear from tunnel bolts and other abrasion
  • Rubberized spine and heel aids in support, controls flex, resists abrasion
  • Hinged tongue makes for easy entry
  • Outer boot made with military grade leather
  • Non-slip heel patch keeps liner locked in place
  • Removable liner
  • Slip pad bottom for easy entry
  • Exo-lacing system with center pull tightening
  • Breathable, insulating foam construction
  • Padded toe box is comfortable and provides cushioning
  • Half sizes can be created with included sole insert

Klim Men's Footwear Sizing

USA Euro 
5 37.5
6 38.5
7 40
8 41
9 42.5
10 44
11 45
12 46
13 47.5
14 49

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

How To Measure

FT Feet What size shoe do you wear?
Product Style RevZilla Item # Manufacturer Product # Availability
6 603822 3212-002-006-000 In Stock: Requires 1-2 business days lead time prior to shipment
7 603821 3212-002-007-000 In Stock: Requires 1-2 business days lead time prior to shipment
8 603820 3212-002-008-000 In Stock: Requires 1-2 business days lead time prior to shipment
9 603819 3212-002-009-000 In Stock: Ships within 24 hours
10 603818 3212-002-010-000 In Stock: Ships within 24 hours
11 603817 3212-002-011-000 In Stock: Ships within 24 hours
12 603816 3212-002-012-000 In Stock: Ships within 24 hours
13 603815 3212-002-013-000 In Stock: Requires 1-2 business days lead time prior to shipment
14 603814 3212-002-014-000 In Stock: Requires 1-2 business days lead time prior to shipment


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Please see our International Orders page for orders shipping outside the US.

We show real-time availability on this product page when you select the size/color item you want.  Most items will ship the same business day an order is placed,however if an item requires additional processing time a message will be shown indicating such.

See our full Shipping Policy for further details.


If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

See our full Return Policy for all of the pertinent details.

Write a Product Review for a chance to win our monthly $100 giveaways.
Klim Radium GTX Boots 4 5 3 3
If you like snowboard boots you will like these. If you like snowboard boots you will like these boots. They are warm and offer great protection. Only complaints are that are bulking from the ankle up. My gaitors barely fit around the top of the boots. They also run small. I wear a 13 and my toes just touch. A 13 usually leaves me room in other boots. If I were to by again I would go with the other more conventional styles. March 16, 2015
Top quality like klim has always had Would be nice to have boa option, otherwise nice boot, December 1, 2014
Need snow to try them out! I got these boots for Christmas, but because it is averaging 50 degrees out in December/January I have yet to use them. I trust they will be waterproof, because I have owned Gore-Tex protected products in the past, I just want to know if they are warm! I would like to hear from anyone out there they own them, and I will be updating my blog with my review (once we get some snow in the Northeast!) - http://trailriders.blogspot.com/ January 13, 2012
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